It appears on right-hand side on desktop as well as when you tap on the search box in the mobile app and primarily for people using Facebook in English (there are limited tests being run in Spanish and Portuguese).

"Now, instead of seeing a story description in Trending, you'll now see a simplified topic - for example, #PhelpsFace or NASA - as well as the number of people talking about that particular topic on Facebook," the post read.

To see more about what people are saying about a topic, you can hover over it or click on it.

A search results page will include the news sources that are covering it, posts discussing it and an automatically selected original news story with an excerpt pulled directly from the top article itself.

"As before, articles and posts that appear in search results are surfaced algorithmically, based on a high volume of mentions and a sharp increase in mentions over a short period of time," the post added.

There are still people involved in this process to ensure that the topics that appear in Trending remain high-quality - for example, confirming that a topic is tied to a current news event in the real world.